Isekai Yakkyoku
In which our mc gets isekaied into another world from overworking. He is now a small boy and decides to open a pharmacy since medicine is only available to the rich, and he wants to make medicine for the poor. Also, he becomes hella op. Did I mention that? Four star for not doing the plot well.
The Reincarnation Magician Of The Inferior Eyes
Tensei Saki ga Shoujo no Shiro Buta Reijou datta
Mom, Please Don't Come Adventuring With Me! ~The Boy Who Was Raised by the Ultimate Overprotective Dragon, Becomes an Adventurer With His Mother~
Saihate no Paladin
In which our mc has been reincarnated (I don't know why I read all this isekai but whatever) into another world as a child and has been picked up by three undeads. They lead their peaceful and fluffy life as mc grows up. Eventually, he has to learn magic and swordsmanship, as well as houseworking as part of his daily life, but he enjoys it nevertheless. Eventually, someone mysterious attacks him and his adoptive parents and he finds out the truth about who they are. REEEE. This is one of my favorite stories, hands down. No fucking harem. Yes. I love it so much. Holy shiet yes. Can I just say, it's really good, the mc isn't too op, although he could be, but at least he isn't a fucking douche and can actually do stuff without being all "I'm not all that great. There are many others better than me" like some OTHER mc's (yes, I'm looking at you Master of Ragnarock). Also, HIS COMPANIONS ARE MALES and/or THEY AREN'T FUCKING ANNOYING AF. ThAt'S hELlA reFReSHinG.
Girl and Science